Locomotive trailer truck



Jan. 13, 1931. H. M. PFLAGER 1,788,583

, A Locouo'rIvE TRAILER Tnucx Filed April 24, 1925 ROB.

'Patented YfJan." 13, l1931 HARRYQMJKPFLAGER, Vor sT. Atours,` MISSOURI;.Assreivoltf :BY rivrnsivnjfA-s'sierilxctnivtie, To GENERAL lsfr-enr.casrrives CORPORATION;oreRAivrrE,omvnmrlvors*A oonrorm` 'CrIoNoF:DELAWARE- LojcoMorrIvE TRAILER TRUCK@ y; l

" Applicatimieai April 24, 1925. semaine'. 25`5`3 7L n l My' invention"relates ktofrailvvay rolling stock Vand' consists yin an improvedtrailer' l*truck a'dapted'for use in locomotives The .objectslo myyinvention are to pro- 5 videl ajfour Wheel trailer trucl; instead'ofthe usual tvvo Wlieeltrailer truck and toy distribrutetlie load onthe trailer'truck frame to each fof the axlesvo'f'tlie trailer''truckand to providean iequalizingg, system for vdistributing,f

` :.:10tl1eload on k the trailer truclrtoTv both 'of there y trailer'truck axlesand `to the mainequalizing.

'system of the locomotive. I desire to accomplish this result `Withoutshifting the points ofwapplication lofthe load tothe trailertruck "16"frame from tlie` usual. load 'supporting points locatedrespective-ly,'at the front and rear of the'trailerftruck frame as is customary Withj,

a 'tivo Wheel trailer gtruoks'heretofore*in use. The'above-mentioned'objects arejobtained l *W90 in the structure illustratedin the accompanyf finirdravvingainwhich; n i l f. v.

' rFigi/1re l'is atop view of the rear 'end of a Vlocomotive iframe, lWith cradle, supported upon alfo'ur Wheel trailer truck. y

:v525 Fi'zginire` 2 is a side elevationof the structure shown in Figure1;

. Q i Figure?) isa half real'l elevation ofthe mick ylstructurershovvnin `Iiirures land 2.V v o Figure 4 is a` enlarged vertical longitudinalsection through .the `point yofV connection of the trailer truck andlocomotive frame and is takensubstantially'online 4"-4 of Figurefl. Inthedrawings. the `locomotive'main frame is indicated. atl andthe cradleat 2. The' rear locomotive driveris shov'vn at 3 and the trailer truckvWheels are indicated at 4 Aand fandtheir axles'are shovvn Vat 6L and 7,v "r'esnectivel'v Y n f y n -l The trailer truck. frame vincludes wheelk V'piece's,"8v'vl`1iol1l converge at their-orvvardends to forma center.plate-like'element 9,1 the up'.-A tperlortiongof which fits into -acomplemenyftary shaped lower'portion of a member 10 on throughvmembers'9 and l0 and is r rigidly se,- curedtoI memberv 9Jby vnut k12 and .haslimited longitudinal movement through '.mernber'lO.

' Thisarrangenient preventslaccidental fdsf jlianger-QO rsupporte'dwbythe end.. oiga lspring Vis carried. by theVtr-ailertruclis'gsupported..7 f

tributed to .blotlrtrailer truck axles land to :the locomotive drivers:through the trailer truck equalizing systenivand the locomotive thelocomotive gframe. A king pin 11 passes Vand e ,lassemblyy o fumember's9Jand lO'but permits? theirdisa'ssembly :wlien desired noon removalThe.,filuck frame supportedxvblvlaii iequal-V izingE system,- thedescriptionoffwliicli will. be

simpli'edby referring .to the elements lo# `55 `catedionone,side "onlyof thefcenterline of the locomotive. These comprise an equalizer upon'tlietrailer'j ournal boxes support hange erplyequalizer 151andtheV rearendlof equalizer -l3,`as clearlyL shown in tlie.drawing2 and the forwardendof equalizer 13, is .carried by.

21 mountedon ithejzournal boXof the eary driverlfff by thelattl'er atits forward end through'mem?v Y ber` 9 andat its'i'reargend. throughlfjearings 22 locatedat the sides 'of the truck frame and consisting 1nany usual sliding oranti-frlction'bearlnps such'as are inr common use,`

Preferably" theltrailer ltruck frame isn??5 formed 0f a 'single ncasting f and the jvheel" piecesjSare box-shape in .cross section andreceiveV andyhouse the equalizers and springs. l @bviously y thi-sfpreferred construction may be varied as the details Aand the particu:'80 lar a'rrangeinentof the equalizing system `Without departing fromthe spirit of'my invention.l Irrespectiveof these features,V the loadapplied, to the trailertruck will be ,dise

equalizingfsystem both systems being combinedby tliegarrangement shown.

lli krInfa locomotive,` antrailer Ltruckframe ysupporting-fsuperstructure load o at its rear fend", yfa? ldriver. axle,spaced trailer truck axles,

truck framel to ally of sai'dfaxlesg,A

Ingalocomotive,a-.trai'lertruckframe .o e supportingl superstructureload atfits rear end, a driveraxlegspacedtrailertruck axles 'i nlocatedbetWeenj theefnd's of'szlrdtrucktrame,Jr le@ n o cuializersldistributing the load Von said" 95A and equalizers distributing the loadon said truclri'rame to all of said axles. 3. In a locomotive, a cradle,a trailer truck Aframe supporting said cradle, a driver axle,

spaced t-railer axles, and equalizers distrib uting the load on saidtruck frame to all of said axles. l y l 1. In a locomotive, a cradle, atrailer truck frame, the opposite ends of which support i iequ'alizer'sdistributing "the loa'd on said'truck frame to all of said axles. .A ,YI 6j In a locomdtive, a cradle, a't'raile'r truck frame, the oppositeVends of which support sad'Crajdl'e, a driver ax le,'space d traileraxles located between fthfee'nds of said truck frame,landjezql'ialize'rs distributing the load on said Y tru'clcfraine to allofsaid axles.

Y In 'a locomotive, a trailer 't'ruclr frame, a driver axle,s'pacedtr'a'iler axles,'and` equalizers pivoted rto "said truck kframeand dis-A tributing the .load on 'said truck vframe to all 'off saidaxles. 8.In a'locomoti've, altrailer truck frame, a driver, axle, spacedtrailer vaxles` located between the ends Vof said truck frame, and

.equalizers pivoted to said truck frame and all 'oisa'id axles. v

`9. Ina locomotive, a cradle, atrailer truck istribiiting the Yload vonsaid Vtruc/l vframe to I 1tranne, the forward end of which partiallysupports said lcradle, a driver axle, spaced trailer axles,andfecplalizersY pivoted to said .truck 'frame and distributing the loadonsaid truckframe to'all of said axles.

1Q. .In a locomotive, a cradle, a itrailer 1 i a truck frame, theopposite endsof whlch support said cradle, a driver axle,spaced traileraxleslocated between the ends of -said truck frame, equallizerspivotedto said truck frame 'andydistributingthe load on saidjtruck frame to allof said axles. i

e Inalocomotive, a trailer truck frame supporting superstructure .loadat lts .rear

end,fa y:plurality of trailer 'truck axles, and

equalizers vsupp'crting said frame `from "said 'axles and 'from theieeomotive.

12. v`Ina loeornotivef, a driver axle, a trailer truc-lr frame, i'alplurality oftr'a-iler axles, `'and a system of equalizers, one end' otwhichsysftem'issupported by said driver axleand the 'otherend offwhichsystem supports 1a portion of Ysaid fra-me remote from "said Vdriveraxle andthe intermediate portionof which system 1s supported bysaidtrailerfaxles.

13. Inaloeomotive,a driver axle, aftrailer Y truck having spaced axles,Ya truck `frame,

an equalizer pivoted toy saidv frame in front Y.of said axles, anequalizer .;pivoted to said frame between said axles, yielding meanssupporting said frame from said truck axles, supporting both ends ofsaid latter mentioned equalizer fro-rn said axles and supporting'one endof said first-mentioned equalizer lfrom one of said axles, and .yieldingmeans supporting the other end of said irst-mentioned equalizer fromsaid driver axle.

Y 14. yIn a locomotive, ka trailer truck frame, spaced trailer axles,ain equal-izerrpivoted on Said ff'ramebetween said axles, a-se'condfequah izer pivoted on said lfra-me 1in -front 'of onel of saidaxles, individual springs carried by said axles, connections betweensaid springs and ethe ends 'of vsaid first-mentioned equalizer, aconnection between one of said springs and koneend of the otherequalizer, a connection between the other of said springs and saidframe, anda support for the other Yend of said latter-mentionedequalizer.

Y 15;. In a locomotive, a trailer truck frame, equalizers piv'oted Ionsaid frame at points spaced longitudinally thereof, an axle `betweensaid equalizers, a spring carried by said axle, respective connectionsbetween the ends of said spring and adjacent ends of saidV`eq'ua-lizers, and supporting means for -the other ends of -saidequalizers. Y y

1'6. In a locomotive, a 'trailer truck, a plura-lity of wheeleda'xles, aspring carried by, each axle, lanjer'lualizer between vsaid springs, anequalizerfbeyond said springs, a truck frame supported by saidequalizersv, and a support on the locomotive for said latter equalizer,p

17. n In a locomotive, al trailer'truck, ya Vplurality of wheeled axles,aspri'ng carried by each axle, 4an equalizer between adjacent ends ofsaid springs,lan.equalizer beyond said springs, a truck frame,and-elements support-1A ing said frame from said equalizers.

18. In aY locomotive, .a trailer truck, a truck frame, an equalizerpivoted on said frame, t'wo wheeled axles, a spring carried by eachaxle, a connection between one end of each spring and an end ofsaidequalizer, and ari-equalizer for supportmgsaid frame vpivotedon saidframe beyond the end of-one ofv said springs.

19. In a locomotive, a trailer truck include' ing 'a trucky frame andwheel carrying axles,

vIneans for supporting the "truck frame upon said axles, whichksupporting means is l`ocated in front of and to the rearo'fsaid axles,

the supporting 'means v'including fa plurality of "equalizers fo'neac'hside of the truck that are ulcrumed'on'the'trailer truck rframe and formpart ofthe main'equalizing system of the locomotive, said 'truck framebeing Aadapted to receive its load at a 'point'fnear its forward end intrent 4of the fulcrum points of vthe equalize-rs I'a-nd at'points'totherear vof-saidaxle's. Y V

20. AInalocomotive, a trailer truck includy-inga ff-rame and wheelcarrying axles, which frame is .adapted to receivethe weight and load ofthe locomotive at a single point near vits forward end' and at aplurality of points to the rear of'sa'id axles, and meansyieldfingl-ysupporting vthe ,trailer truckl frame uponl its Vaxlesiwhich include springs supported by the truck axles and equalizingAmembers that are fulcrumed. on the truck frame and-which form a partofthe main equalizing system.

21. In a locomotive, a trailer truck including a frame and aplurality-of wheel carrying axles, `which frame yis adapted to receivethe l weight `and load of the locomotive ata single- 15. ity of pointsto the rear of said axles, and

pointnear its forwardend Vand .atfa pluralmeans forv yieldinglysupporting the l'truckV vframe upon said axles, which means includesAsie truck frame in front of theaxles, the for-4` springs supported bysaid axlesand equal'- izing members that are fulcruined onthe wardendsof said equalizing mernbers'being`v connected to the mainequalizing. systeinof I the locomotive.

22.l In combination Awith a locomotive, Va

trailer truck frame pivotally 'connectedto said locomotive, a pluralityof wheel carrying axles *l journaled by said truck frame, said truckframe being provided near its forward end and to the' rear of saidaxlesYwith bear-` ings for the locomotive,-springs supported by the truckaxles, connections between the rear ends ofsaid springs and thetruck-frame, equalizing members fulcrumed on the truck frame in `frontof said axles, and connectionsV from the forward endsof the trucksprings to the rear ends ofI saidequalizing members,

said -equalizing.members forming partl of themain equalizing system. y

Y 23.-',An integral structure comprising a locomotive trailer truckframe havingspaced pedestalson one side, an equalizer fulcruin ytrailersprings, an elementanchoring the rear end of the rear of said trailersprings to said rtruck frame, and'superstructure supported on -saidtruck frame at the rear 'ofsaid element.

25. In a locomotive, a trailer truclrframe,

a driver axle, a front trailer axle and a rear trailer axle, trucksprings supporting said l frame fromsaid trailer axlessuperstructuresupported at its'rear end by saidframe at f points `located at the rearof all of said truck springs, andl equalizers distributing the allof'said axles. 26; In a locomotive, a

trailer truck frame Y' vsupporting superstructure load at its rearend-,adriver`axle,1a spring Vsupported by said;

driver` axle, spacedtrailer truck axles,p springs supported bysaidjtruckaxles, and equalizer supported by said" truck `.axle springs, and Y anequalizer supported by vone'of the 'truck axle i springs and by thedriver axle springs. 'f f:

27. Ina locomotivea trailer truck n supporting superstructureV load at,itsJ-rear end,`a driver axle,.spaced trailer truck axles,l

an equalizer supported by said traili-ir truck v axles andanotherequalizer oneend'of which Y l is supported by one of the trailertruck axles,z

which is supported bythe o the other end of driver' axle,

28,- 'In `a locomotive@ :trailer -trucl having a plurality of axles,fatrailertruclrv frame*k supporting superstructureload atv its rear end, adriver axle, a springsupported by said Y driver. axle, said springibeinga part 'of the main equalizingy system of said locomotive, the rearyportion of-said inain'equalizing sys-` tem being supported by thetrailer trucl axles and being connected tothe portionlat drivers anequalizer, one end of vwhich is supported by the front truck-axlespring, the other end of vwliicli'equalizer is supported by frame saiddriver-axle spring, said system having.

al point intermediate said truck axles;

l In testimony whereof I hereuntoaixf day ofMarch,-1925;

signature this 31st ,o riLAGnn' i i v weight of thesuperstructure sosupported to y' Yan equalizerpivoted to said truclrlramefat "a i

